Has anyone done this? I've heard about how Fuchs used to do something like this, where you could send them a blackface Fender or some other kind of of amp and they would redo it and put a Dumble circuit in it. Anyone have experience with this? Those of you how have done it, how much did it cost? I'd like an ODS from Fuchs or Omega but they're quite expensive so I'd like to know if this cuts down on the price at all. Also, are there any disadvantages to doing this? Thanks!